Home / 1,341.40-1,849.98-1,263.64

Finding the Fourth Proportional to 1,341.40, 1,849.98 and 1,263.64

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Solution

The fourth proportional to 1,341.40, 1,849.98 and 1,263.64 is: 1,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.40 : 1,849.98 = 1,263.64 : x
  2. Step 2: Convert to fraction form
    1,341.40/1,849.98 = 1,263.64/x
  3. Step 3: Cross multiply
    1,341.40x = 1,849.98 × 1,263.64
  4. Step 4: Simplify right side
    1,341.40x = 2,337,708.73
  5. Step 5: Solve for x
    x = 2,337,708.73/1,341.40
  6. Step 6: Final answer
    x = 1,742.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.